http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001502715-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D211-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-61 |
| filingDate | 1997-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2001502715-A |
| titleOfInvention | Preparation of naphthyridine compound and novel intermediate |
| abstract | (57) Abstract: R represents hydrogen or C 1 -C 4 alkyl, Ar represents phenyl which may be substituted, Hal independently represents fluorine, chlorine or bromine, and n represents 1 Is an advantageous process for the preparation of naphthyridine compounds of the formulas (Ia) to (Ic), which represent 2 or 3, whereby the halogenated nicotinic acid, isonicotinic acid or picolinic acid is reacted with an aminoacrylate to give the halogenated compound. 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate, which is reacted with an optionally substituted aniline to form a halogen containing an amino group corresponding to the optionally substituted aniline. 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate is obtained. A second halogenated 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate is added to the compound of formulas (Ia)-(Ic) where R = C 1 -C 4 alkyl by adding an acid scavenger. In the case of the preparation of the compounds of formulas (Ia) to (Ic) where R = H, the compounds of formulas (Ia) to (Ic) where R = C 1 -C 4 alkyl are saponified. |
| priorityDate | 1996-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 74.